Page 75
CDi DriveCore Series Operation Manual
Troubleshooting
Fault displayed here
CONDITION: Some other fault is indicated in the display.
POSSIBLE REASON:
• There are a number of conditions that result in a fault error being displayed: the
operating temperature exceeds 100°C, excessive high or low frequencies are
detected at the output, or an output short circuit is detected. These conditions should
all be checked and attempted to be resolved before the amp is shipped back for
service. See "System Protection" on page 72 for more information on these
protection features.
CONDITION: Distorted sound.
POSSIBLE REASON:
• Load is wired incorrectly or Dual/Bridge mode is configured incorrectly — both
should be verified. See "Wiring Output Connectors" on page 7 and
"Conguring Outputs for Bridge Mono Operation" on page 40.
• Input is overloaded by a signal level that is too high. Turn down the amplifier input
level controls, or turn down the output of the source signal until the Clip LED goes
out.
NOTE: If the signal sounds distorted even though the Clip LED is off, the signal may be
dis torted before it reaches the amplifier input. Check gain staging and output levels of the
mixer or preamp.
CONDITION: No sound, even though the Power LED is lit blue and
the level meters indicate the amp is receiving an input sig nal.
POSSIBLE REASON:
• Speaker not connected. Power off the amplifier, disconnect the AC power cord, then
verify speaker connection.
• Open circuit due to speaker failure. From the front panel display, determine which
channel has the short. Power down the amplifier then disconnect the AC power
cable. Remove the shorted load from the channel (and possibly attached cables)
and have it checked by a qualified technician. Reconnect the power cord and power
up the amplifier. If the shorted condition remains after the load is removed, the unit
should serviced. See "Service" on page 88.
CONDITION: No input signal. Input signal indicator is not lighting,
even though audio is being sent to the amplier's input and the
amp is powered on (blue Power indicator lit).
POSSIBLE REASON:
• Input signal level is very low. Double check the gain structure of the system and
ensure that the amplifier's input trim levels are set accordingly.
• Input routing is not configured correctly for application. See "Assigning Input
Sources" on page 14
.
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